List of highways numbered 90

The following highways are numbered 90:

Canada

Interstate 90
U.S. Route 90
Arizona State Route 90
Arkansas Highway 90
California State Route 90
Colorado State Highway 90
Florida State Road 90
Georgia State Route 90
Illinois Route 90
Iowa Highway 90 (1926–1932) (former)
K-90 (Kansas highway)
Kentucky Route 90
Maine State Route 90
Maryland Route 90
M-90 (Michigan highway)
Minnesota State Highway 90 (former)
- County Road 90 (St. Louis County, Minnesota)
Missouri Route 90
Nebraska Highway 90 (former)
- Nebraska Spur 90A
- Nebraska Spur 90B
Nevada State Route 90 (former)
New Jersey Route 90
- County Route 90 (Bergen County, New Jersey)
New Mexico State Road 90
New York State Route 90
- County Route 90 (Cattaraugus County, New York)
- County Route 90 (Dutchess County, New York)
- County Route 90 (Jefferson County, New York)
- County Route 90 (Oneida County, New York)
- County Route 90 (Orange County, New York)
- County Route 90 (Rensselaer County, New York)
- County Route 90 (Rockland County, New York)
- County Route 90 (Saratoga County, New York)
- County Route 90 (Steuben County, New York)
- County Route 90 (Suffolk County, New York)
- County Route 90 (Westchester County, New York)
North Carolina Highway 90
Ohio State Route 90 (1923) (former)
Oregon Route 90 (former)
Pennsylvania Route 90 (1920s-1960s) (former)
South Carolina Highway 90
Tennessee State Route 90
Texas State Highway 90
- Texas State Highway Loop 90
- Farm to Market Road 90
Utah State Route 90
Virginia State Route 90
West Virginia Route 90
Wisconsin Highway 90 (former)
Wyoming Highway 90